Journal-bearing.



No. 820,765. PATENTED MAY 15, 1906. A. BUOHNER & E. P. MQGLURE. JOURNAL BEARING.

APPLICATION FILED AUG. 6 1902 RENEWED SEPT. 26, 1906.

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Specification of Letters Patent.

iratented May 15, 1906.

Application filed August 6,1902. Renewed September 25, 1905. Serial No. 280,055.

To (l /Z7 whom, it may concern:

Be it known that we, ALBERT BUCHNER and ELMER P. MoCLURE, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in J ournal-Bearings; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in that class of motors or vapor-engines in which the crank works in an air-tight chamber, and has for its object to provide a j ournal-bearing arrangement for the crank-shaft whereby it is easily adjusted to compensate for the wear and at the same time maintain a tight joint and prevent the explosive mixture escaping from the crank-chamber through the bearings.

In the drawings, Figure 1 is an elevation and part section embodying the improved features; and Fig. 2 is a side elevation and section on line 2, Fig. 1 looking in the direction indicated by the arrow.

It will be understood that the motor or engine may be of any or the usual construc- The description will therefore be confined to the improved features.

A represents the cylinder; B, the crankshaft; C, the companion fly-wheels, and D the crank-chamber in the supporting-base E. The two open sides of the crank-chamber are closed by tight-jointed bearing side plates or caps 3, and as the bearings and parts on each side are alike a description of one side will answer for both. The outside journal pillow-block 4 is cast solidly with and forms an integral part of the side plates 3. This outside pillow consists of a bottom part 5 and the extended arched top part 6. A space 7 under the arch provides for the endwise insertion and adjustment of a loose journalcap 8. The adjusting-screws 9 are inserted The metal boxes or bearing proper comprises the lower semicircular box 11 and the corresponding upper half 12, inclosing the crank-shaft, which passes through both of the side plates. A great deal of trouble and inconvenience has been met with in this class of motors in providing proper means for conveniently compensating for the wear and maintain a close uniform contact of the bearing-surfaces and at the same time prevent the escape of any portion of the explosive mixture therethrough from the crankchamber.

By this arrangement a continuous uniform bearing may be maintained and the journal-cap adjusted to a nicety, so that the wear is more equally distributed and the mo tor operated for a longer time before the boxes and crank-shaft get out of line than is possible under the ordinary arrangement. The outside journal-box is provided with an extension 13, threaded, as at a, for the engage ment of the packing-gland 14 in forming the usual stuffing-box 15 in providing a tight joint around the crank-shaft.

Having thus described our invention,what we claim, and desire to secure by Letters Patent, is

1. A journal-bearing of the class described, comprising a chambered base, the companion side plates provided with a pillow-block having an arched top open from the inner end, an adjustable journal-cap inserted therein, and means employed in connection with the arched top for holding the journal-cap to a uniform bearing, substantially as set forth.

2. In a journal-bearing of the class described, the combination with a chambered base 0 en on opposite sides, of companion side p ates having an integral pillow-block and an arched top over the bearing with an intervening space, a journal cap inserted endwise in said space, and means for retaining said cap in a uniform bearing position in down through the arch part 6 with a threadi compensating for the wear, substantially as ed engagement therein and bear loosely on the journal-cap 8. These screws are pro set forth.

8. In a ournal-bearing for gas-engmes,

vided with the usual lock-nuts 10 for retainj the combination with a chambered base open ing the same in their set position.

l on oposite sides, of a crank-shaft inserted therethrough, the companion side plates In testimony whereof We aflix our signaclosing the open sides and provided with a tures in presence of two Witnesses. pillow-block having an arched top and a ALBERT BUCHNER. stuffing-box extension, the journal-cap in- ELMER P. MGCLURE. serted loosely in its bearing position, and the Witnesses:

adjusting-screws bearing on said journal-cap, L. M. FREEMAN,

substantially as set forth. 1 L. B. OOUPLAND. 

